Home / 30,465.10-42,041.55-17,036.20

Finding the Fourth Proportional to 30,465.10, 42,041.55 and 17,036.20

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Solution

The fourth proportional to 30,465.10, 42,041.55 and 17,036.20 is: 23,509.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,465.10 : 42,041.55 = 17,036.20 : x
  2. Step 2: Convert to fraction form
    30,465.10/42,041.55 = 17,036.20/x
  3. Step 3: Cross multiply
    30,465.10x = 42,041.55 × 17,036.20
  4. Step 4: Simplify right side
    30,465.10x = 716,228,254.11
  5. Step 5: Solve for x
    x = 716,228,254.11/30,465.10
  6. Step 6: Final answer
    x = 23,509.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.